PLANKTON LIKE PROTISTS NOTES

Question 1

What protist category do algae fall under

Answer 1

Plantlike protist

Question 2

What are the characteristics of plantlike protists (4)

Answer 2

• Photosynthesizes
• Contain chlorophylls
• Comes in a variety of colors
• Are unicellular or multicellular

Question 3

What are diatoms

Answer 3

Golden Algae

Question 4

What are important facts about diatoms (2)

Answer 4

• They are a global source for aquatic food and O2
• They are the most numerous multicellular algae in the oceans

Question 5

What are some characteristics about Diatoms (4)

Answer 5

• Their shells contain silica
• They have a cell wall
• They have two valves with the larger valve acting as the lid
• When they asexually reproduce , each lid produces a smaller one inside one half of the previous valve

Question 6

True/False: Diatoms are used in soundproofing, filters, polishing, toothpaste, pavement, and paint sparkles

Answer 6

True

Question 7

What are dinoflagellates

Answer 7

Spinning algae

Question 8

In dinoflagellates, the cell is usually bounded by a protective…..

Answer 8

Cellulose plate

Question 9

How many flagella does a dinoflagellate usually have

Answer 9

2

Question 10

True/False: Dinoflagellates can live symbiotically with other marine organisms and can even provide their host with nutrients

Answer 10

True

Question 11

What can dinoflagellates cause

Answer 11

Red Tide

Question 12

What toxins do dinoflagellates produce and how can humans ingest it

Answer 12

Neurotoxins: By eating shellfish

Question 13

True/False: Red algae is unicellular

Answer 13

False; Multicellular

Question 14

What colored pigments do red algae’s contain and what is their scientific name

Answer 14

Red, Blue, Violet, and Green pigments called Phycobilin’s

Question 15

How many red algae species are there

Answer 15

7,000

Question 16

True/False: Red algae can lie in waters that are almost 200m deep

Answer 16

True

Question 17

What do red algae’s use to attach themselves to rocks

Answer 17

holdfasts

Question 18

True/False: Agar is a capsule for vitamins and drugs, used for dental impressions, cosmetics, culture medium, electrophoresis, and food prep

Answer 18

True

Question 19

What is Browns algae’s scientific name

Answer 19

Phaeophyta

Question 21

What are multicellular forms of green, red, and brown algae called

Answer 21

Seaweed

Question 22

What keeps seaweed floating

Answer 22

Air bladders in tissues

Question 23

What is the scientific name of green algae

Answer 23

Phylum Chlorophyta

Question 24

What are some characteristics of Green Algae (3)

Answer 24

• Chlorophyll is its main photosynthesizer
• Its very versatile (it can live in many types of water)
• Comes in multicellular, unicellular, and colonial cellularity

Question 25

What is a spirogyra

Answer 25

A type of green algae

Question 26

What are the characteristics of Spirogyra (2)

Answer 26

• Its found in green masses on the surfaces of ponds and streams
• It has ribbon like, spiraled chloroplasts

Question 27

What are the THREE forms of reproduction that spirogyra can go through

Answer 27

• Asexual Fragmentation
• Conjugation
• meiosis

Question 28

What is Alternations of Generations

Answer 28

The process of two haploid gametes fusing to produce a diploid zygote which then develops into a multicellular diploid sporophyte

Question 29

What is a Sporophyte

Answer 29

The diploid asexual phase of Alternation of Generations, where cells have two sets of chromosomes

Question 30

What is a Gametophyte

Answer 30

The haploid sexual phase of Alterations of Generations, where cells have only one set of chromosomes